diff --git a/td/tl/tl_jni_object.cpp b/td/tl/tl_jni_object.cpp
index 640635c32..169e0dd3b 100644
--- a/td/tl/tl_jni_object.cpp
+++ b/td/tl/tl_jni_object.cpp
@@ -79,7 +79,7 @@ void register_native_method(JNIEnv *env, jclass clazz, std::string name, std::st
 
 std::unique_ptr<JNIEnv, JvmThreadDetacher> get_jni_env(JavaVM *java_vm, jint jni_version) {
   JNIEnv *env = nullptr;
-  if (java_vm->GetEnv(reinterpret_cast<void **>(&env), jni_version) == JNI_EDETACHED) {
+  if (java_vm->GetEnv(reinterpret_cast<void **>(&env), jni_version) == JNI_EDETACHED && env != nullptr) {
 #ifdef JDK1_2  // if not Android JNI
     auto p_env = reinterpret_cast<void **>(&env);
 #else